A study of interference preload anti-rotation validity criterion for cylinder assembly in vibration environments
In the study of study of interference preload anti-rotation validity criterion for cylinder assembly in vibration environments, using Mooney-Rivilin model to describe the mechanical behavior of rubber cushion and Coulomb contact sliding assumptions, the stress field is calculated by ABAQUS at optional contact points for different offset displacements. The boundary of compression-shear stress zone is obtained. When the offset displacement exceeds this boundary, the stress will be occurrence into frictional sliding state. This defines the minimum slip on eccentric distance as the validity criterion of preload. Since the relative movement of the vibration amplitude smaller than the eccentric distance between the inner and outer layers, it ensures that there is no relative rotation to validate the preload anti-rotation assembly effectiveness. Based on the numerical simulation and an orthogonal axis vibration table phase-difference relative experiment, we find that the layers rotation occur only when the relative motion amplitude exceeds a certain value, which is verified the smallest slip eccentric distance is reasonable criterion.
1 Institute of Systems Engineering, CAEP, Mianyang Sichuan, 621900, China;
2 School of Aerospace, Tsinghua University, Beijing, 100084
Abstract：In the study of study of interference preload anti-rotation validity criterion for cylinder assembly in vibration environments, using Mooney-Rivilin model to describe the mechanical behavior of rubber cushion and Coulomb contact sliding assumptions, the stress field is calculated by ABAQUS at optional contact points for different offset displacements. The boundary of compression-shear stress zone is obtained. When the offset displacement exceeds this boundary, the stress will be occurrence into frictional sliding state. This defines the minimum slip on eccentric distance as the validity criterion of preload. Since the relative movement of the vibration amplitude smaller than the eccentric distance between the inner and outer layers, it ensures that there is no relative rotation to validate the preload anti-rotation assembly effectiveness. Based on the numerical simulation and an orthogonal axis vibration table phase-difference relative experiment, we find that the layers rotation occur only when the relative motion amplitude exceeds a certain value, which is verified the smallest slip eccentric distance is reasonable criterion.
王飞1，庄茁2，万方美1，杜强1，范志庚1. 振动环境下过盈装配圆柱结构预紧防转判据研究[J]. 振动与冲击, 2015, 34(8): 187-192.
WANG Fei1, ZHUANG Zhuo2,WAN Fang-mei1, DU Qiang1, FAN Zhigeng1. A study of interference preload anti-rotation validity criterion for cylinder assembly in vibration environments. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(8): 187-192.
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